Window construction



Dec. 25, 1956 J. D. FULLER wmoow CONSTRUCTION Filed Nov. 30, 1953 2Sheets-Sheet 1 /N VENTOB Jams; DfuzLE/z lrQwm/ HTTOBNEYS Dec. 25, 1956J. D. FULLER WINDOW CONSTRUCTION Filed Nov. so; 1953 2 Sheets-Sheet 2 vi v than M a w a u IITTORNEYJ United States Patent WINDOW CONSTRUCTIONJames D. Fuller, Seattle, Wash.

Application November 30, 1953, Serial No. 395,020

1 Claim. (Cl. 20-522) This invention relates to improvements in woodenwindow frames. More particularly it has reference to improvements infeatures of construction of those parts comprised in the frame structurethat are closely associated with the slidably mounted window sash.

The principal objects of the present invention are: to provideimprovements in the frame structure that will eliminate that sticking ofthe slidably mounted sash that results from the application of paint tothe frame and sash; to eliminate to a maximum degree, various othercauses of friction and sticking that usually make sash adjustmentdifficult; to provide means for a better sealing of joints against windand weather and without detriment to the ease of adjusting the sashbetween open and closed position; to provide for better drainage ofwater from the weather exposed side of the sash; to make possible theeasy removal from and easy installation of the sash in the framestructure without requiring removal of the present parting or glidestrips; and to provide various other improvements and advantages inwindow frame construction. The present application is a continuation inpart of my co-pending application filed on July 25, 1950, under SerialNo. 175,722, and which has now become abandoned, and is an improvementon the structure shown therein.

More specifically stated, the various objects and advantages of thepresent invention reside in the provision of a window frame having upperand lower sliding sash that are spaced and guided by means of partingstrips of special form, herein referred to as glide strips, at least oneof which strips is yieldingly mounted and may be depressed into a stripcontaining groove in the corresponding jamb to make possible the quickand easy removal of the sash from the frame when such is desired, andwherein the glide strip is designed to normally coact with and retainthe sash in the clear of stops and jambs to that extent required toprevent friction or the sticking together of painted surfaces, and toinsure ease and freedom of sash adjustment. Furthermore, to providenovel means for effecting weather tight joints between sash and stopswithout undue friction.

Further objects and advantages of the invention reside in the specialform of glide strip employed, and manner of mounting it.

In accomplishing these and other objects of the invention, I haveprovided the improved details of construction, the preferred forms ofwhich are illustrated in the accompanying drawings, wherein:

Fig. l is an elevation of a window frame fitted with sliding upper andlower sash and embodying the various improvements of the presentinvention therein.

Fig. 2 is a horizontal, cross-sectional detail through opposite sidejambs of the frame, particularly showing the glide strips and theirassociation with the sash and jambs; this view showing one of the glidestrips as depressed in its containing channel.

Fig. 3 is a horizontal, sectional detail of one of the glide strips andthe jamb as channeled to receive it.

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Fig. 4 is a vertical section taken on line 4-4 in Fig. 1.

Fig. 5 is a horizontal section on line 55 in Fig. 1, but with both sashadjusted to the same level to show each in cross-section.

Fig. 6 is a horizontal section taken on line 66 in Fig. 5 to show theglide strip engaging springs.

Referring more in detail to the drawings:

In Fig. 1, I have shown a wooden window frameembodying the improvementsof the present invention therein. This frame comprises opposite sidejambs 1010', a lintel 11 and a sill 12; these parts being best shown inFigs. 4 and 5. Applied to the jambs, about the outside of the frame, areblind stop strips 13 and upon these strips finishing moldings 14 areapplied in the usual way.

At the inside of the frame, at opposite sides and across the topthereof, casings may be applied in the usual way, for example as shownat 15. Also, the window stool 16 and apron 17, as shown at the lower endof the frame, may be applied.

It is shown in Fig. 1, that the window frame contains glazed upper andlower sash, designated generally by numerals 18 and 19, respectively.These sash are slidably mounted in the frame for vertical adjustmentbetween open and closed positions. The upper sash 18 is mounted forguided travel between the blind stop strips, at opposite sides of theframe, and the present glide strips 2020' that are set in grooves orchannels 21 formed in the side jambs 1010 of the frame as seen in Fig.5. The lower sash, 19, likewise, is guided in its travel by the glidestrips and stop strips 22 that are fixed to the jamb faces along theirinner edges, as shown in Fig. 2.

One of the main features of the present invention is the combination ofthe present glide strips and sash. These strips are so constructed as toserve not only as parting beads for the sash but also to hold the sashin the clear of the jamb surfaces and stop strips for their easyadjustment and to avoid sticking by reason of painted surfaces. In crosssection, each glide strip is formed on its outer face with two laterallyspaced, longitudinal channels 24 and 25 which define a centrallongitudinal rib 26, from end to end of the strip, and coextensiveopposite edge ribs 27 and 28. Each of these ribs, 26, 27 and 28 has itsopposite side wall surfaces beveled, or sloped, to give the ribs theoutwardly tapered, wedge-shaped form shown best in Fig. 3.

The vertical side rails of the sash 18 and 19 are longitudinallychanneled along their outer surfaces, as shown at 2930 in Fig. 2. Thesechannels normally slidably contain the ribs 27 and 28 of the glidestrips therein. The ribs 26 of the opposite glide strips, as applied toopposite jambs, serve as parting beads between the two sashes.

It will be observed by reference to Figs. 2 and 5, that the glide stripsnot only space the two sash, as do the ordinarily used parting beads,but also, by reason of the ribs 27 and 28 thereof being fitted in thesash channels 29 and 30, hold the sash free and clear of the jambs andstops; this being Well shown in Fig. 5.

It is also a feature of this particular construction and combination,that one of the glide strips, here shown to be strip 20, is yieldinglymounted in its jamb channel in a manner that permits it to be depressedinto the channel to such extent that the sash rail can clear it, thuspermitting the sash, upon removal of one of the strips 22, to be easilyremoved from the frame to the inside thereof.

In the Fig. 2 it is seen that the glide strip 20 at the left side isseated in the jamb channel 21 provided for it. The channel 21, asprovided in the opposite jamb, is of substantially greater depth, andcontains the glide strip therein, but not normally seated; there beingsubstantial clearance between the bottom of the channel and under orbottom surface of the strip as noted in Fig. 5.

Leaf springs 35 asshown in Figs. 5 and 6 are disposed under.tensioiribetween the. glidestrips. 20.. nd. bottom. f.

the channel, at intervals along the strip, to urge the glide stripsoutwardly. Adjusting screws 38 are applied through holes 39.; formedinthe stripe at. intervals-.therealong; and threaded: into-the.jalnbs,-andjinto anchor. clips auras seen inPiigs. 5* and 6. These, screws have,heads seated in sockets in the outer faces of the ribs: 26,; of, theglide,

strips: tQ-Which a screw, driver; canbe applied; to adjust the screwsinwardly-and; thuspull' the; strip downinto the channel as in Fig. 2when it; is. desired to clear the sash fonremoval. Also, the screws areadjustable as ameans of limiting-the. outwardadjustment of the strips 1as effected-by the springs 35..

"Eheseglidestrips.arepreferably made of Alaska yellow cedar. They'areunpainted-and are impregnated with a toxic; solution; combined. with;paraffine, and the ribs thereof' are designed to, fit. accuratelywithin". the sash channels 29; and, 30'. The springs 35', as. adjustedby the screws. 38,, provide just the. exact;tension or. pressuredesired; Practically all friction is eliminated and a weather tightjointrisprovided by this particular use of the glide strips.

To further seal the; joints backof the adjustable glide strips, the,space back, of each strip; is filled with glass wool. insulation,asdesignated at 42 in Figs. 5 and 6. It will be-understood that if a,sash should swell or'shrink, the springs 35 will automatically'keep thetension-practically, the same at all. times.

The horizontal joints at the top, checkrail, and bottom of: the; sash.are sealed with: flexible, extruded rubber strips 44.. applied as,shownin Fig.4 at 4-5, 46 and 47, respectively. These strips areattached; to the sash and fit in female grooves fifismade, in the frame,making an unusually tight. andwaterresistant joint.

The sill is givenconsiderablc slope and a space is provided, as at52;,in Fig. 4;, between the undersurface of the sill and, bottom. railof sash 19. Water. drains out naturally and air circulates. under thesash up to the rubberyweather stripping, keeping the, sash dryand'preventing formationof ice in cold;weather.

The sash may be counterbalanced by use of overhead spring balances, orby other suitable means not herein shown.

Having thus described my invention, what I claim as new therein anddesire to secure by Letters Patent is:

A window frame and sliding sash combination comprising a frame withopposite side jambs, each formed on its inside with a longitudinal.channel, parting strips fitted in said channels, each formed along itsopposite longitudinal edges with projectingribs, an. upper and a lowersash contained in the frame for up and down adjustment between thejambs, eachsash having longitudinal channels inthe outer faces of itsside rails containing corresponding ribs of the opposite parting stripstherein to mount and guide the sash in its adjustment, one of saidstrips being adjustable into and from its jamb channel to seat its ribsin the sash channels or to disengage them from the sash for removal ofthe sash from the frame, said adjustable parting. strip having parallellongitudinal channels formed in its inner face, bowed leaf,

springs arranged along the parallel channels with their endsseatedagainst the bases ofthe jamb channel in which the strip is contained,and their central portions contained in the parallel channels andbearing against the strip to urge it outwardly, and adjusting screwsarranged along the. strip, and passing therethrough between the channelsand through the jamb and nuts fixed in the jarnband into which thescrews are threaded for adjustment of the parting strip.

References Cited in the file of this patentv UNITED STATES PATENTS791,909 Hoprnan June 6, 1905 829,748 Wright Aug. 28, 1906 903,706Goddard Nov. 10, 1908 1,026,520 Lunken May 14, 1912 1,199,495 ProbertSept. 26, 1916 2,451,654 Beil Oct. 19, 1948

